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Impurities & Reference Standards

Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.

27,990products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

2-Chloro-N-(2,5-dimethylphenyl)acetamide chemical structure

2-Chloro-N-(2,5-dimethylphenyl)acetamide

CAS: 5177-35-5
Formula: C₁₀H₁₂ClNO
MW: 197.66 g/mol

VQ-048885

Reference Standard

2-Chloro-N-(3-chloro-2-methylphenyl)nicotinamide chemical structure

2-Chloro-N-(3-chloro-2-methylphenyl)nicotinamide

CAS: 57841-61-9
Formula: C₁₃H₁₀Cl₂N₂O
MW: 281.13 g/mol

VQ-023017

Reference Standard

2-Chloro-N-(3-methoxyphenyl)acetamide chemical structure

2-Chloro-N-(3-methoxyphenyl)acetamide

CAS: 17641-08-6
Formula: C₉H₁₀ClNO₂
MW: 199.63 g/mol

VQ-035131

Reference Standard

2-Chloro-N-(4-chloro-2-(2-chlorobenzoyl)phenyl)acetamide chemical structure

2-Chloro-N-(4-chloro-2-(2-chlorobenzoyl)phenyl)acetamide

CAS: 14405-03-9
Formula: C₁₅H₁₀Cl₃NO₂
MW: 342.6 g/mol

VQ-035444

Reference Standard

2-Chloro-N-(4-ethylphenyl)-N-(2,3,5,6-tetrafluorophenyl)acetamide chemical structure

2-Chloro-N-(4-ethylphenyl)-N-(2,3,5,6-tetrafluorophenyl)acetamide

CAS: 332903-68-1
Formula: C₁₆H₁₂ClF₄NO
MW: 345.72 g/mol

VQ-027869

Reference Standard

2-Chloro-N-(methylsulfonyl)acetamide chemical structure

2-Chloro-N-(methylsulfonyl)acetamide

CAS: 202658-88-6
Formula: C₃H₆ClNO₃S
MW: 171.6 g/mol

VQ-032462

Reference Standard

2-Chloro-N-[2-(2-chlorobenzoyl)-4-nitrophenyl]acetamide chemical structure

2-Chloro-N-[2-(2-chlorobenzoyl)-4-nitrophenyl]acetamide

CAS: 180854-85-7
Formula: C₁₅H₁₀Cl₂N₂O₄
MW: 353.2 g/mol

VQ-039806

Reference Standard

2-Chloro-N-[4-(trifluoromethyl)phenyl]acetamide chemical structure

2-Chloro-N-[4-(trifluoromethyl)phenyl]acetamide

CAS: 2707-23-5
Formula: C₉H₇ClF₃NO
MW: 237.6 g/mol

VQ-037919

Reference Standard

2-Chloro-N-[4-chloro-2-[(hydroxyimino)phenylmethyl]phenyl]acetamide chemical structure

2-Chloro-N-[4-chloro-2-[(hydroxyimino)phenylmethyl]phenyl]acetamide

CAS: 17977-76-3
Formula: C₁₅H₁₂Cl₂N₂O₂
MW: 323.2 g/mol

VQ-039731

Reference Standard

2-Chloro-N-methyl-N-((3R,4R)-4-methylpiperidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine chemical structure

2-Chloro-N-methyl-N-((3R,4R)-4-methylpiperidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

CAS: 1616760-97-4
Formula: C₁₃H₁₈ClN₅
MW: 279.77 g/mol

VQ-044084

Reference Standard

2-Chloro-N-phenethylacetamide chemical structure

2-Chloro-N-phenethylacetamide

CAS: 13156-95-1
Formula: C₁₀H₁₂ClNO
MW: 197.66 g/mol

VQ-041606

Reference Standard

2-Chloro-N-phenylaniline chemical structure

2-Chloro-N-phenylaniline

CAS: 1205-40-9
Formula: C₁₂H₁₀ClN
MW: 203.67 g/mol

VQ-036674

Reference Standard

2-Chloro-N,N-dimethylethylamine-d6 Hydrochloride chemical structure

2-Chloro-N,N-dimethylethylamine-d6 Hydrochloride

CAS: 97941-91-8
Formula: C₄H₁₁Cl₂N
MW: 150.08 g/mol

VQ-029750

Reference Standard

2-Chloro-N,N-dimethylpropylamine hydrochloride chemical structure

2-Chloro-N,N-dimethylpropylamine hydrochloride

CAS: 4584-49-0
Formula: C₅H₁₃Cl₂N
MW: 158.07 g/mol

VQ-039059

Reference Standard

2-Chloro-N'-(2-chloroacetyl)acetohydrazide chemical structure

2-Chloro-N'-(2-chloroacetyl)acetohydrazide

CAS: 89124-06-1
Formula: C₄H₆Cl₂N₂O₂
MW: 185.01 g/mol

VQ-044238

Reference Standard

2-Chloroacridin-9(10H)-one chemical structure

2-Chloroacridin-9(10H)-one

CAS: 7497-52-1
Formula: C₁₃H₈ClNO
MW: 229.66 g/mol

VQ-040251

Reference Standard

2-Chlorobenzotrichloride chemical structure

2-Chlorobenzotrichloride

CAS: 2136-89-2
Formula: C₇H₄Cl₄
MW: 229.9 g/mol

VQ-025067

Reference Standard

2-Chlorobenzotrifluoride chemical structure

2-Chlorobenzotrifluoride

CAS: 88-16-4
Formula: C₇H₄ClF₃
MW: 180.55 g/mol

VQ-026387

Reference Standard

2-Chloroethanol-1,1,2,2-d4 chemical structure

2-Chloroethanol-1,1,2,2-d4

CAS: 117067-62-6
Formula: C₂H₅ClO
MW: 84.54 g/mol

VQ-040100

Reference Standard

2-Chloroethyl carbamate chemical structure

2-Chloroethyl carbamate

CAS: 2114-18-3
Formula: C₃H₆ClNO₂
MW: 123.54 g/mol

VQ-048919

Reference Standard

2-Chloroethyl cyclohexyl carbonate chemical structure

2-Chloroethyl cyclohexyl carbonate

CAS: 142269-40-7
Formula: C₉H₁₅ClO₃
MW: 206.66 g/mol

VQ-029607

Reference Standard

2-Chloroinosine chemical structure

2-Chloroinosine

CAS: 13276-43-2
Formula: C₁₀H₁₁ClN₄O₅
MW: 302.67 g/mol

VQ-039180

Reference Standard

2-Chloromethyl-3,5-dimethylpyridin-4-ol chemical structure

2-Chloromethyl-3,5-dimethylpyridin-4-ol

CAS: 220771-03-9
Formula: C₈H₁₀ClNO
MW: 171.62 g/mol

VQ-032736

Reference Standard

2-Chloromethyl-4-methoxy-3-methylpyridine hydrochloride chemical structure

2-Chloromethyl-4-methoxy-3-methylpyridine hydrochloride

CAS: 86604-74-2
Formula: C₈H₁₁Cl₂NO
MW: 208.08 g/mol

VQ-048640

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